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Hossain MI, Khaleque MA, Ali MR, Bacchu MS, Hossain MS, Shahed SMF, Saad Aly MA, Khan MZH. Development of electrochemical sensors for quick detection of environmental (soil and water) NPK ions. RSC Adv 2024; 14:9137-9158. [PMID: 38505387 PMCID: PMC10949039 DOI: 10.1039/d4ra00034j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Accepted: 02/23/2024] [Indexed: 03/21/2024] Open
Abstract
All over the world, technology is becoming more and more prevalent in agriculture. Different types of instruments are already being used in this sector. For the time being, every farmer is trying to produce more crops on a piece of land. Eventually, soil loses its nutrients; however, to grow more crops, farmers use more fertilizers without knowing the proper conditions of the soil in real time. To overcome this issue, many scientists have recently focused on developing electrochemical sensors to detect macronutrients, i.e., nitrogen (N), phosphorus (P), and potassium (K), in soil or water rapidly. In this review, we focus mainly on the recent developments in electrochemical sensors used for the detection of nutrients (NPK) in different types of samples. As it is outlined, the use of smart and portable electrochemical sensors can be helpful for the reduction of excess fertilizer and can play a vital role in maintaining suitable conditions in soils and water. We are optimistic that this review can guide researchers in the development of a portable and suitable NPK detection system for soil nutrients.
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Affiliation(s)
- M I Hossain
- Laboratory of Nano-Bio and Advanced Materials Engineering (NAME), Jashore University of Science and technology Jashore 740S Bangladesh
- Department of Chemical Engineering, Jashore University of Science and Technology (JUST) Jashore 740S Bangladesh
| | - M A Khaleque
- Laboratory of Nano-Bio and Advanced Materials Engineering (NAME), Jashore University of Science and technology Jashore 740S Bangladesh
- Department of Chemical Engineering, Jashore University of Science and Technology (JUST) Jashore 740S Bangladesh
| | - M R Ali
- Laboratory of Nano-Bio and Advanced Materials Engineering (NAME), Jashore University of Science and technology Jashore 740S Bangladesh
- Department of Chemical Engineering, Jashore University of Science and Technology (JUST) Jashore 740S Bangladesh
| | - M S Bacchu
- Laboratory of Nano-Bio and Advanced Materials Engineering (NAME), Jashore University of Science and technology Jashore 740S Bangladesh
- Department of Chemical Engineering, Jashore University of Science and Technology (JUST) Jashore 740S Bangladesh
| | - M S Hossain
- Laboratory of Nano-Bio and Advanced Materials Engineering (NAME), Jashore University of Science and technology Jashore 740S Bangladesh
- Department of Chemical Engineering, Jashore University of Science and Technology (JUST) Jashore 740S Bangladesh
| | - S M F Shahed
- Department of ChemisOy, Graduate School of Science, Tohohi University Aramah'-Aza- Aoba, Aoba-Kii Sendai 9S0S57S Japan
| | - M Aly Saad Aly
- Department of Electrical and Computer Engineering at Georgia Tech Shenzhen Institute (GTSI), Tianjin University Shenzhen Guangdong 5ISO52 China
| | - Md Z H Khan
- Laboratory of Nano-Bio and Advanced Materials Engineering (NAME), Jashore University of Science and technology Jashore 740S Bangladesh
- Department of Chemical Engineering, Jashore University of Science and Technology (JUST) Jashore 740S Bangladesh
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Hui Y, Huang Z, Alahi MEE, Nag A, Feng S, Mukhopadhyay SC. Recent Advancements in Electrochemical Biosensors for Monitoring the Water Quality. BIOSENSORS 2022; 12:bios12070551. [PMID: 35884353 PMCID: PMC9313366 DOI: 10.3390/bios12070551] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 07/10/2022] [Accepted: 07/13/2022] [Indexed: 05/06/2023]
Abstract
The release of chemicals and microorganisms from various sources, such as industry, agriculture, animal farming, wastewater treatment plants, and flooding, into water systems have caused water pollution in several parts of our world, endangering aquatic ecosystems and individual health. World Health Organization (WHO) has introduced strict standards for the maximum concentration limits for nutrients and chemicals in drinking water, surface water, and groundwater. It is crucial to have rapid, sensitive, and reliable analytical detection systems to monitor the pollution level regularly and meet the standard limit. Electrochemical biosensors are advantageous analytical devices or tools that convert a bio-signal by biorecognition elements into a significant electrical response. Thanks to the micro/nano fabrication techniques, electrochemical biosensors for sensitive, continuous, and real-time detection have attracted increasing attention among researchers and users worldwide. These devices take advantage of easy operation, portability, and rapid response. They can also be miniaturized, have a long-life span and a quick response time, and possess high sensitivity and selectivity and can be considered as portable biosensing assays. They are of special importance due to their great advantages such as affordability, simplicity, portability, and ability to detect at on-site. This review paper is concerned with the basic concepts of electrochemical biosensors and their applications in various water quality monitoring, such as inorganic chemicals, nutrients, microorganisms' pollution, and organic pollutants, especially for developing real-time/online detection systems. The basic concepts of electrochemical biosensors, different surface modification techniques, bio-recognition elements (BRE), detection methods, and specific real-time water quality monitoring applications are reviewed thoroughly in this article.
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Affiliation(s)
- Yun Hui
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China;
| | - Zhaoling Huang
- School of Mechanical and Electrical Engineering, Guilin University of Electronic Technology, Guilin 541004, China;
| | - Md Eshrat E. Alahi
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China;
- Correspondence: (M.E.E.A.); (S.F.)
| | - Anindya Nag
- Faculty of Electrical and Computer Engineering, Technische Universität Dresden, 01062 Dresden, Germany;
- Centre for Tactile Internet with Human-in-the-Loop (CeTI), Technische Universität Dresden, 01069 Dresden, Germany
| | - Shilun Feng
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
- Correspondence: (M.E.E.A.); (S.F.)
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Singh S, Anil AG, Kumar V, Kapoor D, Subramanian S, Singh J, Ramamurthy PC. Nitrates in the environment: A critical review of their distribution, sensing techniques, ecological effects and remediation. CHEMOSPHERE 2022; 287:131996. [PMID: 34455120 DOI: 10.1016/j.chemosphere.2021.131996] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 08/13/2021] [Accepted: 08/22/2021] [Indexed: 06/13/2023]
Abstract
Nitrate pollution is eminent in almost all the developing nations as a result of increased natural activities apart from anthropogenic pollution. The release of nitrates in more than critical quantities into the water bodies causes accretion impacts on living creatures, environmental receptors, and human vigour by accumulation through the food chain. Nitrates have recently acquired researchers' huge attention and extend their roots in environmental contamination of surface and groundwater systems. The presence of nitrate in high concentrations in surface and groundwater triggers several health problems, for instance, methemoglobinemia, diabetes, eruption of infectious disorders, harmfully influence aquatic organisms. Sensing nitrate is an alternate option for monitoring the distribution of nitrate in different water bodies. Here we review electrochemical, spectroscopic, and electrical modes of nitrate sensing. It is concluded that, among the various sensors discussed in this review, FET sensors are the most desirable choice. Their sensitivity, ease of use and scope for miniaturisation are exceptional. Advanced functional materials need to be designed to satiate the growing need for environmental monitoring. Different sources of nitrate contamination in ground and surface water can be estimated using different techniques such as nitrate isotopic composition, co contaminants, water tracers, and other specialized techniques. This review intends to explore the research work on remediation of nitrate from wastewater and soil using different processes such as reverse osmosis, chemical denitrification, biological denitrification, ion exchange, electrodialysis, and adsorption. Denitrification proves as a promising alternative over previously reported techniques in terms of their nitrate removal because of its high cost-effectiveness.
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Affiliation(s)
- Simranjeet Singh
- Interdisciplinary Centre for Water Research (ICWaR), Indian Institute of Science, Bangalore, 56001, India
| | - Amith G Anil
- Department of Material Engineering, Indian Institute of Science, Bangalore, 56001, India
| | - Vijay Kumar
- Department of Chemistry, Central Ayurveda Research Institute, Jhansi, U.P. , India
| | - Dhriti Kapoor
- Department of Botany, Lovely Professional University, Jalandhar, Punjab, 144111, India
| | - S Subramanian
- Department of Material Engineering, Indian Institute of Science, Bangalore, 56001, India
| | - Joginder Singh
- Department of Microbiology, Lovely Professional University, Jalandhar, Punjab, 144111, India.
| | - Praveen C Ramamurthy
- Interdisciplinary Centre for Water Research (ICWaR), Indian Institute of Science, Bangalore, 56001, India.
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Zhang G, Zeng H, Liu J, Nagashima K, Takahashi T, Hosomi T, Tanaka W, Yanagida T. Nanowire-based sensor electronics for chemical and biological applications. Analyst 2021; 146:6684-6725. [PMID: 34667998 DOI: 10.1039/d1an01096d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Detection and recognition of chemical and biological species via sensor electronics are important not only for various sensing applications but also for fundamental scientific understanding. In the past two decades, sensor devices using one-dimensional (1D) nanowires have emerged as promising and powerful platforms for electrical detection of chemical species and biologically relevant molecules due to their superior sensing performance, long-term stability, and ultra-low power consumption. This paper presents a comprehensive overview of the recent progress and achievements in 1D nanowire synthesis, working principles of nanowire-based sensors, and the applications of nanowire-based sensor electronics in chemical and biological analytes detection and recognition. In addition, some critical issues that hinder the practical applications of 1D nanowire-based sensor electronics, including device reproducibility and selectivity, stability, and power consumption, will be highlighted. Finally, challenges, perspectives, and opportunities for developing advanced and innovative nanowire-based sensor electronics in chemical and biological applications are featured.
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Affiliation(s)
- Guozhu Zhang
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan.
| | - Hao Zeng
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan.
| | - Jiangyang Liu
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan.
| | - Kazuki Nagashima
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan. .,JST-PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Tsunaki Takahashi
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan. .,JST-PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Takuro Hosomi
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan. .,JST-PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Wataru Tanaka
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan.
| | - Takeshi Yanagida
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan. .,Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka, 816-8580, Japan
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5
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Kalimuthu P, Kruse T, Bernhardt PV. A highly sensitive and stable electrochemical nitrate biosensor. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138480] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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6
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Patella B, Russo RR, O'Riordan A, Aiello G, Sunseri C, Inguanta R. Copper nanowire array as highly selective electrochemical sensor of nitrate ions in water. Talanta 2020; 221:121643. [PMID: 33076163 DOI: 10.1016/j.talanta.2020.121643] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 09/05/2020] [Accepted: 09/07/2020] [Indexed: 12/25/2022]
Abstract
Contamination of water with nitrate ions is a significant problem that affects many areas of the world. For this reason, European legislation has set the maximum permissible concentration of nitrates in drinking water at 44 mg/L. Thus, it is clear that a continuous monitoring of nitrate ions is of high technological interest but it must be rapid, easy to perform and directly performable in situ. In this work we have developed a nanostructured sensor based on array of copper nanowires obtained with the simple method of galvanic deposition. The nanostructured sensors have a very short response time with a detection limit less than 10 μM. Different interfering species were tested finding a negligible effect except for the chloride ions. However, this problem has been solved by removing chloride ions from the water through a simple precipitation of chloride compounds with low solubility. Nanostructured sensors were also used to analyze real water samples (rain, river and drinking water). In the case of drinking water, we have measured a concentration of nitrate ions very close to the that measured by conventional laboratory techniques.
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Affiliation(s)
- B Patella
- Laboratorio di Chimica Fisica Applicata, Dipartimento di Ingegneria, Università of Palermo, Viale delle Scienze, Palermo, Italy
| | - R R Russo
- Laboratorio di Chimica Fisica Applicata, Dipartimento di Ingegneria, Università of Palermo, Viale delle Scienze, Palermo, Italy
| | - A O'Riordan
- Nanotechnology Group, Tyndall National Institute, University College Cork, Dyke Parade, Cork, Ireland
| | - G Aiello
- Laboratorio di Chimica Fisica Applicata, Dipartimento di Ingegneria, Università of Palermo, Viale delle Scienze, Palermo, Italy
| | - C Sunseri
- Laboratorio di Chimica Fisica Applicata, Dipartimento di Ingegneria, Università of Palermo, Viale delle Scienze, Palermo, Italy
| | - R Inguanta
- Laboratorio di Chimica Fisica Applicata, Dipartimento di Ingegneria, Università of Palermo, Viale delle Scienze, Palermo, Italy.
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7
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Sadeghi Afjeh M, Bagheri Marandi G, Zohuriaan-Mehr MJ. Nitrate removal from aqueous solutions by adsorption onto hydrogel-rice husk biochar composite. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2020; 92:934-947. [PMID: 31854048 DOI: 10.1002/wer.1288] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Revised: 12/05/2019] [Accepted: 12/08/2019] [Indexed: 05/28/2023]
Abstract
In the present study, we investigated the performance of hydrogel-rice husk biochar composites, as low-cost, alternative, and biocompatible adsorbents for separating nitrate ions from aqueous solutions. Hydrogel-biochar composite was synthesized at dosages of 2.5%, 3.6%, 4.8%, and 9.6% weight ratios of biochar. The composite was characterized by several common methods including FTIR, SEM, TEM, TGA, and DSC. In addition, the effect of contact time, initial concentration of nitrate ions, and solution pH were considered. The maximum removal of nitrate was about 34.3% at acidic pH (pH = 3) using 0.02 g of adsorbent in 25 ml of nitrate solution with the initial concentration (20 mg/L) and temperature of 25°C for 60 min. Based on the findings, 5% biochar in the composite was the optimal dosage. Adsorption kinetic study revealed that this process followed the first-order kinetic model. The experimental equilibrium adsorption data were tested by the Temkin isotherm model with R2 > 0.97. Based on the thermodynamic studies, the adsorption process was endothermic and spontaneous. Overall, the results suggested that the obtained composite can be specifically employed for removal of contaminations from aqueous solutions. PRACTITIONER POINTS: Hydrogel-biochar composite provides a biocompatible and cost-effective adsorbent. Hydrogel-biochar composite was applied to eliminate nitrate from aqueous solutions. Nitrate removal increased in the synthesized composite upon elevation of the weight ratio of biochar to 0.2 g.
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Affiliation(s)
| | | | - Mohammad Jalal Zohuriaan-Mehr
- Biobased Monomers and Polymers Division (BIOBASED Division), Iran Polymer and Petrochemical Institute (IPPI), Tehran, Iran
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Bommireddy N, Palathedath SK. Templated bimetallic copper-silver nanostructures on pencil graphite for amperometric detection of nitrate for aquatic monitoring. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2019.113660] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Zhao S, Tong J, Li Y, Sun J, Bian C, Xia S. Palladium-Gold Modified Ultramicro Interdigital Array Electrode Chip for Nitrate Detection in Neutral Water. MICROMACHINES 2019; 10:mi10040223. [PMID: 30934835 PMCID: PMC6523635 DOI: 10.3390/mi10040223] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 03/25/2019] [Accepted: 03/26/2019] [Indexed: 11/16/2022]
Abstract
An ultramicro interdigital array electrode modified by palladium-gold was developed for nitrate detection in neutral water. The ultramicro interdigital array electrode was fabricated based on silicon substrate by Micro Electro-Mechanical System (MEMS) technique. The nanostructured palladium-gold (Pd-AuNPs) composite sensing film was electrodeposited on the surface of a working electrode by electrochemical method. The synergistic effect of Pd-AuNPs composite was investigated and its enhancement of the catalytic activity and stability was revealed. The Pd-AuNPs modified electrode showed good linearity (R² = 0.99) from 1 mg/L to 15 mg/L (as N) for nitrate determination in a neutral water environment (pH = 7.2), with a sensitivity of 4.7 μA·mg-1·L. The results showed that the developed Pd-AuNPs-modified ultramicro interdigital array electrode chip can achieve sensitive and environmentally-friendly detection for nitrate in neutral water.
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Affiliation(s)
- Shanshan Zhao
- State Key Laboratory of Transducer Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Jianhua Tong
- State Key Laboratory of Transducer Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China.
| | - Yang Li
- State Key Laboratory of Transducer Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China.
| | - Jizhou Sun
- State Key Laboratory of Transducer Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China.
| | - Chao Bian
- State Key Laboratory of Transducer Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China.
| | - Shanhong Xia
- State Key Laboratory of Transducer Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China.
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10
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Electrochemical Deposition of Nanomaterials for Electrochemical Sensing. SENSORS 2019; 19:s19051186. [PMID: 30857146 PMCID: PMC6427742 DOI: 10.3390/s19051186] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 03/01/2019] [Accepted: 03/04/2019] [Indexed: 12/12/2022]
Abstract
The most commonly used methods to electrodeposit nanomaterials on conductive supports or to obtain electrosynthesis nanomaterials are described. Au, layered double hydroxides (LDHs), metal oxides, and polymers are the classes of compounds taken into account. The electrochemical approach for the synthesis allows one to obtain nanostructures with well-defined morphologies, even without the use of a template, and of variable sizes simply by controlling the experimental synthesis conditions. In fact, parameters such as current density, applied potential (constant, pulsed or ramp) and duration of the synthesis play a key role in determining the shape and size of the resulting nanostructures. This review aims to describe the most recent applications in the field of electrochemical sensors of the considered nanomaterials and special attention is devoted to the analytical figures of merit of the devices.
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Rudd S, Dalton M, Buss P, Treijs A, Portmann M, Ktoris N, Evans D. Selective uptake and sensing of nitrate in poly(3,4-ethylenedioxythiophene). Sci Rep 2017; 7:16581. [PMID: 29185502 PMCID: PMC5707362 DOI: 10.1038/s41598-017-16939-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 11/20/2017] [Indexed: 12/02/2022] Open
Abstract
Nitrogen (N) as a nutrient, in the form of nitrate (NO3-), is essential for plant growth. Chemical fertilizers are used to increase crop yields, but overuse can lead to forms of environmental pollution necessitating methods to detect and monitor the level of NO3- in-situ in agricultural soils. Herein we report for the first time the NO3- selectivity of the inherently conducting polymer poly (3,4-ethylenedioxythiophene) (PEDOT). This selectivity occurs when PEDOT thin films are exposed to an aqueous environment containing not only NO3-, but a mixture of other ions present in concentrations (ppm) typical of real agricultural soil. The PEDOT sensitivity to absorb NO3- from solution is determined to be <1 ppm.
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Affiliation(s)
- Sam Rudd
- Future Industries Institute, University of South Australia, Mawson Lakes, South Australia, 5095, Australia
| | - Michael Dalton
- Sentek Pty Ltd, Stepney, South Australia, 5069, Australia
| | - Peter Buss
- Sentek Pty Ltd, Stepney, South Australia, 5069, Australia
| | - Amanda Treijs
- Sentek Pty Ltd, Stepney, South Australia, 5069, Australia
| | | | - Nick Ktoris
- Sentek Pty Ltd, Stepney, South Australia, 5069, Australia
| | - Drew Evans
- Future Industries Institute, University of South Australia, Mawson Lakes, South Australia, 5095, Australia.
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12
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Biosensor Based on Immobilized Nitrate Reductase for the Quantification of Nitrate Ions in Dry-Cured Ham. FOOD ANAL METHOD 2017. [DOI: 10.1007/s12161-017-0921-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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13
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Ali MA, Mondal K, Wang Y, Jiang H, Mahal NK, Castellano MJ, Sharma A, Dong L. In situ integration of graphene foam-titanium nitride based bio-scaffolds and microfluidic structures for soil nutrient sensors. LAB ON A CHIP 2017; 17:274-285. [PMID: 28009868 DOI: 10.1039/c6lc01266c] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
It is challenging to integrate porous graphene foam (GF) and GF-based nanocomposites into microfluidic channels and even create microfluidic structures within these materials. This is because their irregular interior pore shape and geometry, rough exterior surface, and relatively large material thickness make it difficult to perform conventional photolithography and etching. This challenge has largely hindered the potential of using GF-based materials in microfluidics-based sensors. Here we present a simple approach to create well-defined flow-through channels within or across the GF-based materials, using a liquid-phase photopolymerization method. This method allows embedding of a nanocomposite-based scaffold of GF and titanium nitride nanofibers (GF-TiN NFs) into a channel structure, to realize flow-through microfluidic electrochemical sensors for detecting nitrate ions in agricultural soils. The unique GF-TiN nanocomposite provides high electrochemical reactivity, high electron transfer rate, improved loading capacity of receptor biomolecules, and large surface area, serving as an efficient electrochemical sensing interface with the help of immobilized specific enzyme molecules. The microfluidic sensor provides an ultralow limit of detection of 0.01 mg L-1, a wide dynamic range from 0.01 to 442 mg L-1, and a high sensitivity of 683.3 μA mg-1 L cm-2 for nitrate ions in real soil solution samples. The advantageous features of the GF-TiN nanocomposite, in conjunction with the in situ integration approach, will enable a promising microfluidic sensor platform to monitor soil ions for nutrient management towards sustainable agriculture.
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Affiliation(s)
- Md Azahar Ali
- Department of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011, USA.
| | - Kunal Mondal
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, North Carolina 27695, USA
| | - Yifei Wang
- Department of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011, USA.
| | - Huawei Jiang
- Department of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011, USA.
| | - Navreet K Mahal
- Department of Agronomy, Iowa State University, Ames, Iowa 50011, USA
| | | | - Ashutosh Sharma
- Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Liang Dong
- Department of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011, USA.
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14
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Ahmad R, Bhat KS, Ahn MS, Hahn YB. Fabrication of a robust and highly sensitive nitrate biosensor based on directly grown zinc oxide nanorods on a silver electrode. NEW J CHEM 2017. [DOI: 10.1039/c7nj02526b] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This article reports the fabrication of a robust and highly sensitive nitrate biosensor based on directly-grown ZnO NRs on an electrode surface.
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Affiliation(s)
- Rafiq Ahmad
- School of Semiconductor and Chemical Engineering
- Nanomaterials Processing
- Research Center
- Chonbuk National University
- Jeonju-si
| | - Kiesar Sideeq Bhat
- School of Semiconductor and Chemical Engineering
- Nanomaterials Processing
- Research Center
- Chonbuk National University
- Jeonju-si
| | - Min-Sang Ahn
- School of Semiconductor and Chemical Engineering
- Nanomaterials Processing
- Research Center
- Chonbuk National University
- Jeonju-si
| | - Yoon-Bong Hahn
- School of Semiconductor and Chemical Engineering
- Nanomaterials Processing
- Research Center
- Chonbuk National University
- Jeonju-si
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15
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Sohail M, Adeloju SB. Nitrate biosensors and biological methods for nitrate determination. Talanta 2016; 153:83-98. [DOI: 10.1016/j.talanta.2016.03.002] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 02/29/2016] [Accepted: 03/01/2016] [Indexed: 11/16/2022]
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16
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Othman A, Karimi A, Andreescu S. Functional nanostructures for enzyme based biosensors: properties, fabrication and applications. J Mater Chem B 2016; 4:7178-7203. [DOI: 10.1039/c6tb02009g] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A review describing functional nanostructures for portable and printable enzyme biosensors. Specific physicochemical and surface properties of nanoparticles used as carriers and sensing components and their assembly are discussed with an overview of current and emerging techniques enabling large scale roll-to-roll fabrication and miniaturization. Their integration in flexible, wearable and inexpensive point-of-use devices, and implementation challenges are also provided with examples of applications.
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Affiliation(s)
- Ali Othman
- Department of Chemistry and Biomolecular Science
- Clarkson University
- Potsdam
- USA
| | - Anahita Karimi
- Department of Chemistry and Biomolecular Science
- Clarkson University
- Potsdam
- USA
| | - Silvana Andreescu
- Department of Chemistry and Biomolecular Science
- Clarkson University
- Potsdam
- USA
| |
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